title: Effect of a straw-derived xylooligosaccharide on broiler growth performance, endocrine metabolism, and immune response.
abstract: The aim of this work was to evaluate the effect of 3 levels of supplemental xylooligosaccharides (XOS) from straw on the growth performance, endocrine metabolism, and immune response of broiler chickens. Day-old, healthy Arbor Acres broilers (n = 192) received a basal diet of maize-soybean meal and, depending on the group to which they were allocated, no additive (control group) or the following experimental treatments for 59 d: treatment 1: 5 g XOS/kg; treatment 2: 10 g XOS/kg; and treatment 3: 20 g XOS/kg. By day 59 the body weight gain of the chickens receiving treatment 2 had increased by 9.44% (P < 0.01) over the gain of the control group. The levels of serum triiodothyronine, thyroxine, and insulin on day 44 were significantly higher in the treatment groups than in the control group. The titers of antibody to the avian influenza H5N1 virus on day 24 were also significantly higher in the treatment groups than in the control group, and on day 59 the titer of the chickens receiving treatment 2 were still significantly increased (P < 0.05). Thus, the addition of XOS to feed can increase growth performance, enhance endocrine metabolism, and improve immune function in broiler chickens.
authors.affiliation: College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China (Sun, Lv, Yu, Li, Liu, Sun, Wang, Li, Zhe); Jianhu Agriculture College, Jianhu 334700, China (Qin).
authors.forename: Sun
authors.initials: S
authors.lastname: Zhenping
authors.forename: Lv
authors.initials: L
authors.lastname: Wenting
authors.forename: Yu
authors.initials: Y
authors.lastname: Ruikui
authors.forename: Li
authors.initials: L
authors.lastname: Jia
authors.forename: Liu
authors.initials: L
authors.lastname: Honghong
authors.forename: Sun
authors.initials: S
authors.lastname: Wei
authors.forename: Wang
authors.initials: W
authors.lastname: Zhongmie
authors.forename: Li
authors.initials: L
authors.lastname: Jingpan
authors.forename: Shan
authors.initials: S
authors.lastname: Zhe
authors.forename: Qin
authors.initials: Q
authors.lastname: Yuling
mesh_terms: D000821:Animal Feed / Q000032:analysis*; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D002645:Chickens; D004032:Diet / Q000662:veterinary*; D004703:Endocrine System / Q000187:drug effects*; D005260:Female; D005965:Glucuronates / Q000737:chemistry / Q000494:pharmacology*; D053124:Influenza A Virus, H5N1 Subtype / Q000276:immunology; D007252:Influenza Vaccines / Q000276:immunology; D005585:Influenza in Birds / Q000517:prevention & control*; D008297:Male; D009844:Oligosaccharides / Q000737:chemistry / Q000494:pharmacology*; D018547:Plant Stems / Q000737:chemistry; D013974:Thyroxine / Q000097:blood; D014284:Triiodothyronine / Q000097:blood; D014908:Triticum / Q000737:chemistry; D015430:Weight Gain
chemical_list: D005965:Glucuronates; D007252:Influenza Vaccines; D009844:Oligosaccharides; C570991:xylooligosaccharide; D014284:Triiodothyronine; D013974:Thyroxine